REMOTE COPYING SYSTEM FOR STORAGE DEVICE

摘要

PROBLEM TO BE SOLVED: To solve such problems that the remote copy transfer speed of a storage device is slow in a compute system for realizing remote copying between plural storage devices and thereby the throughput of a host I/O has been interrupted. SOLUTION: A host computer is connected to plural storage devices through a fiber channel and remote copying is performed through the fiber channel. Thereby a storage device to be a copying source performs log-in by applying information capable of identifying log-in from the storage device itself and a storage device for receiving the log-in determines a remote side storage device and a port candidate by returning information for specifying a port capable of performing remote copying only at the time of receiving the log-in from the storage device concerned.